已知U={1,2,3,4,5,6,7,8},A={3,4,5},B={1,3,6},则集合C={2,7,8}是( ) A.A∪B
已知U={1,2,3,4,5,6,7,8},A={3,4,5},B={1,3,6},则集合C={2,7,8}是()A.A∪BB.A∩BC.(?UA)∩(?UB)D.(?U...
已知U={1,2,3,4,5,6,7,8},A={3,4,5},B={1,3,6},则集合C={2,7,8}是( ) A.A∪B B.A∩B C.(? U A)∩(? U B) D.(? U A)∪(? U B)
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